Porsche 718 vs BMW M440I

What's the difference?

The 718 Cayman Style Edition only costs a bit more than the entry-grade Cayman it's based on, but opens up more special colours and contrasting features from the wheels to decals, even leather upholstery. The value is good, the look is enhanced and the car remains superb to drive on the right roads.

Living with a Cayman daily is ‘do-able’ but you’ll have to be understanding given it's not the most user-friendly car to drive, and then there’s the low-level safety tech.

But in return, you’ll own one of the best and relatively affordable prestige sports cars ever made and one of the last of the combustion-powered Porsche Caymans.

BMW has once again delivered a supremely enjoyable sports car with its new 2021 4 Series.

Sure, it might have love-it or hate-it styling, but those that dismiss the 4 Series based solely on looks are missing out on a wonderful driving experience.

With the base 420i offering all the style in a relatively affordable pricetag, while the all-wheel-drive grip of the M440i adds extra assurance at a more premium price, BMW's new 4 Series should cater to anyone looking for a premium sports coupe.

The 718 Cayman is often labelled as the 'junior 911' but that downplays its status as an outstanding sports car in its own right.

It’s not a smaller version of the 911, at all, but it is smaller than a 911. Not by much, though. The Cayman is 140mm shorter in length than the 911 at 4379mm end-to-end. Interestingly, the Cayman has a longer wheelbase at 2475mm and is taller at 1295mm.

The 718 Cayman is beginning to date in its design with this generation of the sports car arriving eight years ago. From the outside it’s holding up well in terms of styling , but inside it feels very 2016 with the small media screen and analogue dials.

It gives me a weird nostalgic feeling I normally only get driving older cars, but in a current model. Which could be why Porsche is jazzing the Cayman up with this Style Edition.

The Style Edition enhances the look of the entry-grade Cayman with 20-inch 718 'Spyder' wheels in a high gloss black or white finish, and there’s a choice of six special colours ranging from the Crayon hue our car wore to 'Ruby Star Neo', 'Shark Blue', 'Carmine Red' and 'Arctic Grey'.

The Style Edition also adds black sport tailpipes, full-colour Porsche crests on the wheel hub covers, a black leather interior with contrasting Crayon stitching, Porsche crest embossed headrests, illuminated door sills and floor mats with Crayon contrast stitching.  

Buyers can also choose a 'Contrast Package' in black or white which adds Porsche lettering to the side of the car and a strip to the bonnet.

Let’s get this out of the way. The 2021 BMW 4 Series is not an ugly car, despite what you may think from the press photos found online.

Is it to everyone’s tastes? Of course not, but I find the gaudy, in-your-face gold-on-black that is Versace’s signature styling a little gross … so your milage will definitely vary on the 4 Series like mine does with high-end fashion.

In person, that grille is nowhere near as overwhelming as pictures may have led you to believe, and blends in very nicely with the aggressive and muscular front end of the 4 Series.

In profile, the high shoulder line and slim glasshouse add to the sportiness, as does the sloping roofline and butch rear haunches.

The rear though, is arguably the 4 Series best exterior angle, as the pinched bumper, wraparound tail-lights, large exhaust outlets and subtle rear diffuser combine well for a properly sporty and premium look.

All Australian-spec cars come with the M Sport package, meaning a full bodykit, and 19-inch wheels to make even the boggo 420i look aggressive on the road.

Does it work? Well if it wasn’t wearing a BMW badge then it might not get away with this ostentatious styling, but being a big premium player, we think the 4 Series gets away with being as brash and in-your-face as it is.

We actually love that BMW has taken a risk with the 4 Series’ aesthetics and is willing to push the envelope because, after all, it could have just looked like the 3 Series sans-two doors, and that’s just a bit too safe, isn’t it?

Inside, the 4 Series is familiar BMW territory, which means a thick-rimmed steering wheel, glossy shifter and brushed metal accents, as well as high-quality materials throughout.

The dashboard-integrated multimedia system is a particularly nice touch, as are the metal accents that separate the lower and upper halves of the cabin.

So, is there anything interesting about the design? Absolutely. It’s got the internet talking more than usual and will no doubt draw the eye of those wanting to stand out from the often-samey crowd of German sports cars.

The 718 Cayman doesn’t have back seats -  it's a two-seater sports car. Cabin storage is almost non-existent but is saved by a glove box and pull-out door pockets which are bigger than they look.

Surprisingly, there are three cupholders - two which pop out of the dashboard above the glove box and another in the small centre console bin.

Cargo space isn’t bad for a two-seater sports car with 184-litre rear boot and a front boot with a 150-litre capacity. That’s roughly one nine-year old child as you can see from the photos. My son wanted to sit in there, which I agreed to, but I said no when he asked me to shut the bonnet.

Measuring 4768mm long, 1842mm wide, 1383mm tall and with a 2851mm wheelbase, the 2021 BMW 4 Series certainly looks commanding on the road, and the generous proportions do well for interior space too.

Of note though, the M440i is slightly longer (4770mm), wider (1852mm) and taller (1393mm) than the 420i and 430i, but the slight variance doesn’t translate to any perceivable difference in practicality.

Up front, there is plenty of space for driver and passenger, with a wide array of seat adjustability offering nearly the perfect position for nearly everyone regardless of shape or size.

Storage options include a generous door pocket with separate bottle holder, large central storage cubby, generous glove box, and two cupholders sited between the shifter and climate controls.

We love that the wireless smartphone charger is tucked well away just ahead of the cupholders, meaning you don’t have to worry about keys or loose change scratching up your screen, and it doesn’t eat into any of the other storage options around the cabin.

Being a coupe, you wouldn’t expect heaps of room in the second row, and the BMW 4 Series certainly doesn’t defy expectations in this regard.

Adult passengers can get in the back easy enough, thanks to auto-folding front seats, but once there, head- and shoulder-room can be a bit tight, while legroom is dependent on the height of front passengers.

We’ve certainly been in worse back seats though, and the deeply recessed seats help alleviate some of the headroom issues, but its not a space for the claustrophobic.

Open the boot and the 4 Series will swallow up to 440 litres of volume and, thanks to the wide space, can easily accommodate a set of golf clubs or weekend luggage for two.

The second row is divided 40:20:40, so you can fold down the middle to transport skis (or timber from Bunnings) while still ferrying four.

Folding the rear seats down will increase your cargo volume, but the aperture between the boot and cabin is quite small, so you might want to keep that in mind before heading to Ikea.

BMW’s new 4 Series range is available in three flavours, kicking off with the 420i for $70,900 before on-road costs, which is powered by a 2.0-litre turbo-petrol engine (more on that below).

Standard equipment includes sport seats, LED headlights, a 12.3-inch digital instrument cluster, push-button start, automatic wipers, Alcantara/Sensetec (vinyl-like) interior trim, three-zone climate control and 10-speaker sound system, but it’s the inclusion of an M Sport package and 19-inch wheels that really elevate the look of the new 4 Series to a real sporty model.

The latter two were options in the previous generation, but so many customers (we’re told close to 90%) opted for the sportier looks that BMW just decided to bundle them into the asking price.

The 420i also comes fitted with a 10.25-inch touchscreen multimedia system that includes digital radio, satellite navigation, wireless smartphone charger, and wireless Apple CarPlay AND Android Auto (finally some love for Samsung owners!).

It’s remarkable then, that the new 420i is actually almost $4100 cheaper than the model it replaces, while also boasting more equipment, safety and torque.

Stepping up to the 430i increases pricing to $88,900 ($6400 pricier than before), while also adding more equipment such as adaptive dampers, keyless entry, surround-view camera, M Sport brakes, leather interior and active cruise control.

Outputs from the 2.0-litre turbo-petrol engine are also increased in the 430i (again, more below).

The current king of the 4 Series range until the M4 lands early next year is the M440i, priced at $116,900, but includes a 3.0-litre inline six-cylinder engine and all-wheel-drive grip.

On the outside, the M440i can be distinguished by the standard inclusion of BMW’s Laserlight technology, sunroof and heated front seats, as well as ‘Cerium Grey’ colouring for the kidney grille, tailpipe shrouds and side-view mirrors.

Being a German model, there is (of course) a smattering of options available – including remote engine start and a heated steering wheel – but none jump out as crucial or ‘must have’ in any way.

We appreciate that the base 4 Series looks largely the same as its more expensive siblings, while also offering all the key equipment you’d want out of a premium sports coupe in 2020.

So, under the bonnet of a Cayman is the front boot, but if it’s the engine you’re after you’ll need to go through the rear hatch because this is a mid-engined car.

Getting to the engine means removing several fixtures and covers which begins to feel like you’re dissembling the vehicle and comes with a rising anxiety that it all won’t go back together.

But it all clicks back in. It’s just a slow and tedious process. Fortunately, oil and water can be added by removing the circular covers you can see in the images. 

Under the layers of covers, deep down just in front of the rear axle, is the Cayman’s 2.0-litre ‘flat’ four-cylinder turbo-petrol engine which makes 220kW and 380Nm. A seven-speed dual-clutch automatic transmission sends drive to the rear wheels. 

It’s not a huge amount of power but the Cayman only weighs 1365kg and so can get from 0-100km/h in 5.1 seconds. Not brutally quick but the way this car handles is what you’ll like.  

Oh, and just to be clear, the Style Edition doesn’t bring any extra power or engine changes. The outputs and performance are the same as the entry-grade Cayman.

Both the entry-level and mid-tier 4 Series variants (420i and 430i respectively) are powered by a 2.0-litre turbocharged petrol engine.

Under the bonnet of the 420i, the engine produces 135kW/300Nm, while the 430i ups the ante to 190kW/400Nm.

The flagship (at launch) M440i meanwhile, scores a 3.0-litre turbo-petrol inline six delivering 285kW/500Nm.

All three engines are paired with an eight-speed automatic transmission, with no manual option available on any grade.

The 420i and 430i send drive to the rear wheels, resulting in a zero to 100km/h sprint time of 7.5 and 5.8 seconds respectively, while the all-wheel-drive M440i needs just 4.5s.

Stacked up against its German rivals, the 4 Series offers a decent engine line-up, but doesn’t excel at any level compared to the Audi A5 and Mercedes-Benz C-Class coupe.

Porsche says that after a combination of open and urban roads the Cayman’s fuel consumption should be 7.0L/100km. My 143km fuel test, taking in country roads and school runs, used 21.8L of petrol and equates to 15.2L/100km. Which means I had about twice as much fun as Porsche did when it recorded its fuel consumption.

The 64-litre tanks means in theory you should be able to travel 914km between fills if you’re conservative with fuel.

Officially, the 420i will sip 6.4 litres per 100km, while the 430i is slightly thirstier at 6.6L/100km.

Both aforementioned 4 Series variants will need 95 RON at the bowser.

The heavier and more potent M440i needs 7.8L/100km, while also using the more expensive 98 RON fuel.

We only drove through Melbourne country roads in our brief time with all three grades of the 4 Series and could not ascertain a reliable fuel economy figure.

Our driving did not cover an extended freeway journey or any inner-city driving, so check back to see if the quoted figures hold up to scrutiny once we get more time with the car.

The 718 Cayman Style Edition doesn’t come with any performance advantages over the already brilliant entry-grade Cayman it’s based on. And it is brilliant to drive. Several big steps above Audi’s TT, Nissan's Z or Toyota and BMW’s Supra/Z4 'twins under the skin' in terms of handling, steering and engagement. 

That said, the Cayman isn’t as easy to drive as any of those cars. The steering is heavy, the accelerator is stiff, the dual-clutch auto transmission feels a bit rough and the turbo lags, then sends in the mumbo a bit too fast and too late. Oh, and and the seats are a tad tight.

But I can overlook all of this because on good winding country roads the Cayman feels like a water drop running down a wall, moving naturally and harmoniously around whatever it encounters.

The day-to-day school runs and grocery getting isn’t quite as poetic, and a Cayman proves challenging in the real world over potholes and in supermarket car parks. You’d have to love the Cayman for better or worse, as many do, to live with it daily. If you can't, there's the Audi TT.

Anything wearing a BMW badge promises a fun and engaging drive, after all the brand’s tagline used to be the ‘ultimate driving machine’, which is exacerbated in a sporty two-door.

Luckily then, the 4 Series delivers the goods and is a thoroughly enjoyable drive in all three grades.

Taking the already brilliant new-generation 3 Series as a base, BMW has made the 4 Series lower, and added additional stiffening in the front and rear for a taught and agile handling machine.

The rear track is also increased, while the front wheels have more negative camber to help with mid-corner grip.

Though the 420i and 430i might not draw any headlines, they 2.0-litre turbo-petrol pair are fun to steer and precise with their inputs.

The 420i especially doesn’t have the punch to match its aggressive looks, but is perfectly capable at slower speeds and still a delight to tip in a corner.

The 430i meanwhile, delivers more thrills thanks to its more potent engine, but it can get a bit trashy higher in the rev range.

However, the pick of the bunch for us the M440i, not only for its extra spicy engine, but also the assurance of all-wheel drive.

Now it might be sacrilege to some to not have a rear-drive BMW, but the rear-biased xDrive system in the M440i is wonderfully tuned to deliver the same sort of natural driving characteristic of a two-wheel-drive model.

Undoubtedly the near-perfect weight distribution helps with this, while the wonderfully low driving position means the whole car feels like it pivots around the driver when turning the wheel.

The M Sport differential in the rear is also great at propelling out you out of the bends, while the adaptive suspension also has great variability between comfort and sport settings.

If we had any criticism with the driving experience? We’d have liked a bit more aural theatre, but BMW have to save the louder pops and crackles for the full-fat M4, right?

A big caveat here though is that we have yet to experience the new 4 Series in a suburban setting, with our launch route taking us directly to some twisty country roads.

We also never got to drive the 4 Series in a freeway setting, meaning all of the driving was done in twisty country roads where you would expect a BMW to excel.

BMW’s 2021 4 Series has not been crash tested by either Euro NCAP or ANCAP, and does not wear an official safety rating.

However, the mechanically related 3 Series sedan was awarded a maximum five-star rating when it was examined in October 2019, but do keep in mind that the child occupant protection scores could vary wildly due to the 4 Series’ coupe shape.

The 3 Series scored 97 per cent for the adult occupant protection test, and 87 per cent for the child occupant exam. Meanwhile, the vulnerable road user protection and safety assist tests yielded an 87 and 77 per cent result respectively.

As standard, the 4 Series is equipped with autonomous emergency braking (AEB), forward collision warning, lane departure warning, rear cross-traffic alert, reversing camera, and front and rear parking sensors.

The Cayman Style Edition is covered by a three-year/unlimited kilometre warranty and servicing is needed every 12 months or 20,000km.

With Porsche, final service costs are determined at the dealer level (in line with variable labour rates by state/territory).

We'd like to see the warranty coverage increased to five years/unlimited kilometres which will bring it in line with more mainstream brands.

Like all new BMW models, the 4 Series comes with a three-year/unlimited kilometre warranty.

However, the benchmark for premium brands belongs to Mercedes-Benz, who offer a five-year/unlimited kilometre warranty, while Genesis matches the time period but limits travel to 100,000km.

Scheduled servicing for the 4 Series occurs every 12 months or 16,000km.

At the time of purchase, BMW offers a five-year/80,000 ‘basic’ service package that covers scheduled changing engine oil, filter, spark plugs and brake fluids.

This package costs $1650, which works out to be a very reasonable $330 per service.

A more thorough ‘plus’ plan is also available for $4500 that also covers brake pads/discs, clutch and windscreen wiper replacements over the same five-year/80,000km period.